What was found
UNSUCCESSFUL CSS. APU AUTO SHUT DOWN AND FAULT LIGHT DURING START AT FL330. GROUNDED - YES. ACCOMPLISHED TASKS REF B737-900 FIM 49-30 TASK 803 (G) 1 THRU 4. NO DEFECTS NOTED. APU ROTATES FREELY. DUE TO THE NATURE OF THE DISCREPANCY (MULTIPLE FAILED CSS) CW FIM 49-30 TASK 803 PAR H(2). FUEL FLOW DIVIDER REPLACED REF B737-900 AMM 49-31-15. OPS CHECK GOOD AND LEAK CHECK GOOD. REF DEFECT NO. 60151878 FOR PREVIOUSLY DEFERRED CSS 49-99A AND DEFECT NO. 60151891 FOR TOP DEFERRAL. FCU PREVIOUSLY REPLACED ON 02/27/2021. THIS CLEARS THE DEFECT. MIG 6 PLACARDS REMOVED. SEAMC JARED NOTIFIED.